Back-pedaling coaster-brake.



! PATENTED MAY 19 J. BEDDING. BACK PBDALING; GOASTER BRA APPLICATION FILED MAY 19, 1 902.

2 BHEETS-SHEET 1 Yus nonms wnzns co PNOYO-LITK News, a. c.

No.728,29'5. l PATENTED mum 19, 1903'. J; RBDDING.

BACK PBDALING GOASTER BRAKE. APPLICATION FILED MAY 19,1902.

11? I r l C/ 7.. ul

Vl i'bwsscs:

U NIT ED STATES JACOB BEDDING, OE, CARTL' A E, IN IANA, ASSIGNOR, BY MEsNE ASSIGN- MENTs, TO THE N W DEPARTURE MANUFACTUR G COMPANY, F EEIs- TOL, CONNECTICUT, A CORPORATION.

BACK-PEDVAQLJNG.

Co sTER-BRAK'E.

SPECIFICA ION forming-part or'neiteisreatent No. 728,295, dated May 19; 1903.

Application filed May 19,-1962.-

To all whom it may concern:

Be it known that I, JACOB BEDDING, a citizen of the United States, residing at Oar-v thage, in the county of Rush and State of 5 Indiana, have invented new and useful Improvements in Back-Pedaling Coaster-B rakes,

of which the following is a specificationL' The present invention relates to driving, coasting, and braking mechanism for pedali operated vehicles,more particularly bicycles,

and has for'its object the productionfof simple mechanism controlled by the pedals of the bicycle for positively propelling said bicycle in a forward direction for'permitting said bicycle to move over the ground freely, as in descending a grade or by momentum while the feet of the riderremain' on the pedals, and to bring into actiona brake mechanism for retarding and stopping the ad- '20 vance of the bicycle by back pressure on the F 3 5 a: as, Fig. 1. Fig.4 shows the movable brake member in elevation. ,Figf5 is a side view of the brace forthe movable brake member. Fig. 6 is an end view of the brace. Fig. 7 is a view similar to Fig. 1, illustrating a modi- 0 fied form of the invention. Fig. 8 is a View similar to Fig. 2. Fig. 9 is a sectional view through the movable brake member. Fig. 10 is a View taken-on the line at'ncQFig. 7. Fig. 11 is a view taken ou'the dotted line a: 00 Fig.7.

Similar letters of reference will" be employed throughout the specification and d rawings to designate corresponding parts.

In the drawings, A represents a portion of gerial lilo. 107,911- {No modal.)

' the rear forks of a bicycle, in which is sup- 5o ported in the usual or in any convenient manner the axle B. Upon the axle is mounted the hub O of the rear wheel and the driver D, and within the hub is contained the mechanism for controlling the movements of the bicycle through or by the driver.

The hub C is' provided with the cup-rings a and a and upon the axle B are threaded in the usual way cones b and b. A series ofballs 0 are arranged between the cup-ring a and coneb, and a vseries .of balls '0' are arranged between the cup-ring a? and a race (1 on th'edriver-sleeved, while another set of balls'o is'arranged between'the cone-b and sleeve, the hub and driver being free to turn upon these balls.

sprocket-wheel for use in chain-driven bicycles or any usual form of gear for use in 7c gear-drivers or the so called chainless bicycles. The driver has a connected sleeve d, which is projected within the hub, as clearly shown in Figs. 1 and f the drawings, and which through suitable mechanism acts. to connect said driver tothe hub to positively propel the wheel in afo'rward-direc'tion or to actuate the brake'o'rpe'rmittbe free forward movementof the'whee'l, as .in' coasting.

: the driver D; but it is shownin'thedrawings as separate therefrom and provided with a threaded extensiond fiipon which said driver is threaded, bearingagainst a shoulder or as shown in Fig. 1, or a nut d as shown in', Fig. 7. The driver and its sleeveare normally disconnected from the hub C;-but a suitable clutch device is providedwherebyfupon the forward turning of the driver said driver and 0 its sleeve will be automatically clutched to the hub for positively propelling the wheel in a forward direction. The clutch, as shown in Fig. l of the drawings, consists of a tapered socket 0, formed upon the inner surface of the 5 hub O at the right hand thereof, and the tapered end e of a sleeve E, mounted upon and arranged to move along the driver-sleeve d.

an internal ball-cup upon the saiddriver- 65 The driver D may consist of the usual...

.This sleeve d may be integrally formed with collar d and held in place by a dust-cap d, l

socket c and its complementary clutch mem-.

ber e, and for this purpose said driver-sleeve d is provided with the spiral threads or ribs (Z which engage complementary grooves 6 upon the inner face of the sleeve E.

The above arrangement is such that upon forward turning of the driver D and its sleeve (1 the spiral connection between said driversleeve and the laterally-movable sleeve E will cause said sleeve to move toward the right, as the device is shown in Fig. 1, and thus cause the clutch members 0 and e to be brought into frictionalengagement and lock the driver on the hub for the forward propulsion of the wheel. If during such for- 'ward propulsion the rider desires to coast that is to say, to permit the wheel to advance freely, asin going down a grade-or by momentum, without taking his feet from the pedalshe simply stops or retards the forward turning of the pedals, which stops the driver D and its sleeve 6?, whereupon the hub turns the sleeve E and the spiral connection e and d will cause said sleeve E to move laterally to'the left asufficient distance I pedals, stop the forward travel of the wheel.

The brake mechanism consists of a fixed member-that is to say, the member with which the movable member of the brake is thrust into engagement to stop the wheel, and which will be called the fixed member, notwithstanding that it rotates with the hub C--which comprises a bushing G, fixed into the left-hand end of the hub O by means of the threaded connection g and the pins g, three or more, (only one of which is shown in the drawings,) which engage recesses g formed in said bushing G and. the hub O. This bushing at its inner end is provided with atapered brake-socket g which is arranged to be engaged by the tapered brake-surface of the movable brake member H.

The movable brake member may consist of a solid piece of steel; but for some purposes it may be deemed desirable to provide said brake member with a braking-surface of leather or fiber, and therefore in the drawings I have shown it as comprising a sleeve h, arranged to be freely movable along the axle B and provided at one end with an integral collar h. The opposite end is threaded and receives an interiorly-threaded collar 71 between which and the collar 72/ the tapered brake-surface hiof leather orfiber,is clamped. In order to prevent the braking-surfaceh and the collar 71 from turning on the sleeve h, said sleeve, braking-surface, and collar may be provided with a groove 7L to receive a key or pin 71 The movable brake member H is connected with and designed to be actuated by the driver D and its connected sleeve d, it being caused to frictionally engage the brake-socket 9 upon the backward turning of the driver by back pressure applied to the pedals and to be disengaged therefrom upon forward pedaling. To this end the movable brake member in Fig. 1 is connected to and so as to partake of the lateral movements of the laterally-shifting sleeve E, while permitting the free turning of said sleeve, the brake member H being positively held from turning, while permitted to freely move laterally. This connection in Fig. 1 consists of pins 6 fixed in the sleeve E, which engage a groove he, formed in an extended boss h of the collar 72/ Projected from the collar 71. are the diametrically-disposed lugs 71 which slidingly engage slots or grooves s in the cone b. The cone b is prevented from turning under the strains imparted byvthe movable brake member by means of an arm It, provided with a slot t, engaging the squared outer end of said cone and fixed to the frame of the bicycle, as by means of the hook t engaging one of the horizontal frame members.

The above arrangement is such that the lateral movement toward the left of the sleeve E, caused by the spiral connection a and (1 upon the backward turning of the driver D, will cause said sleeve to force the movable brake member H into braking contact with the brake-socket g of the hub, thus retarding or stopping the wheel. This braking movement of the movable member H takes place against the force of a coiled spring 19, which surrounds the axle B and bears at one end against the end of the movable brake member and which is seated at its opposite end in a chamber 19', formed in the cone b.

In the modified form of the device shown in Figs. 7 to 11, inclusive, the parts in all respects are the same as those just described, with the following exceptions: In this form the spring 19 surrounds the cone 1) instead of being seated in a chamber formed in said cone. The laterally-movable sleeve for actuating the brake and connecting the driver-sleeve with the hub C is omitted and the following mechanism employed instead. The driversleeve is connected to and disconnected from the hub by means of a clutch, which I shall call the driving-clutch, and consists of a roller-clutch comprising a ring 0", fixed to the driver-sleeve 0" against a shoulder r and provided with the inclined notches r which receive the rollers r arranged to lock said ring 1" and the driver-sleeve to the hub 0 when said driver-sleeve shall be turned in one direction and to release said hub when the driver and its sleeve shall be held from turning or when back pressure shall be applied ring 1 and the flanged dl'llm-tb to the driver-- brake-socket 9 thereto, also to permit the free turning of the hub when coasting, said driving-clutch operating in a manner well known tothose skilled in this art, and therefore not necessary to be further described.

A device which I shall call a brake-actuator is employed and consists of a block 20,

having a tubular sleeve to bearing atone end.

against the cone b, which prevents the lateral movement of said brake-actuator, is mounted to turn upon the axle B and at itsinner end is provided with inclined faces 10 formed by a V-shaped notch, which engage correspond.- ing inclined faces w formed by a V-shaped projection on the movable brake member H.

A turning of the brake-actuator will cause.

40 formed in the periphery of the brake-actuator w. v

For the purpose of securing the clutchsleeve 1" said parts are provided upon their adjacent faces or peripheries with the grooves M in which are driven the pins a. (See Fig. 11.) r

The foregoing arrangement is such that a forward turning of the driver D will turn the driver-sleeve 'r" in a forward direction and cause the driver-clutch to connect said sleeve and driver to the hub O for forward pedaling. If the forward motion of the pedals be stopped or retarded, the hub G will be freed from the driver and its sleeve, thus permitting the forward travel of the wheel, as in coasting.

Abackward turning of the driver will cause the brake-clutch-to connect the. brake-actuator to the driver-sleeve, which will thereupon turn the brake-actuator and cause the opposing inclined faces 41: and 20 to turn with relation to each other, and thus move the movable brake member H into contact with the Upon the release of back pressure on the pedals the spring 19 will force the movable brake member toward the right, as shown in Fig. 7, thus releasing the brake and causing the parts to assume their normal position, as shown therein.

The hubs O and O are provided with the usual flanges F for receiving the spokes, and it will be understood that the bicycles in which my invention may be embodied will be provided with pedals and cranks and suitable connections between such pedals and the drivers for actuating said drivers.

It will be noted that in both forms of my invention the brake is located within the hub,

which in outward appearance is substantially the same as the ordinary and usual hub.- It

will be'further noted that in each case the movable member of the brake is brought into action by the relative movement of inclined .faces and returned instantly when back pressure is released by a spring.

Having fully described my invention,

claim as new and desire to secure'by Letters Patent of the United States. 7 I

1. In a coaster-brake,.in combination, a

wheel-hub, a driver having a connected sleeve 1 projected within the hub, a driving-clutch for connecting said sleeve and hub-upon the forward turning of the driver, a brake member carried by the hub, a laterally movable brake member, .and complementary inclined driven element and a driving element, a-

clutch connection betweensaid elements, a"

brake member fixed-to the driven element,"

a movable brake element operatively connected with the driving element andarranged to be vmoved in one direction by said driving element and a spring for movingsaid brake member in the opposite direction, substan tially as described. I i

3. Ina coaster-brake, in combination, a wheel-hub,.a driver provided with a sleeve 1 projected within the hub,a clutch device for connecting said driver sleeve with the'hub,-a

brake member fixed to the interior of the hub,

a laterally-movable brake memberlocated within the hub and means operated bythe driver-sleeve for moving said movable brake member, substantially as described.

4. In a coaster-brake, in combination, a wheel-hub, a driver provided with a sleeve I projected within the hub, a clutch member fixedto the hub, a movable clutch-sleeve actuated by the driver-sleeve, a brake member carried by the hub, and a laterally-movable 'IIO brake member actuated by the clutch-sleeve, 1

substantially as described. 7 i

5. In a coaster-brake, in combination, a'

wheel-hub, a driver provided with a sleeve projected within the hub, a clutch-socket carried by the hub, abrake-socket carried by the hub, a tapered movable brake member, and'a 1 movable clutch-sleeve actuated by the driversleeve for connecting said driver-sleeve with the hub when said driver-sleeve is turnedin one direction and for moving said movable brake member when said driver-sleeve is turned in the opposite direction, substantially as described. 7

6.. In a coaster-brake, in combination, a wheel-hub, a driver havinga connected sleeve 1 projected within the hub, a clutch member carried by the hub and a movable tapered brake member,-and movable clutch-sleeve mounted upon the driver-sleeve for connect-' "1 ing saiddriver-sleeve with the hubwhen moved in one direction and for operating'the 10 actuated device for moving said movable brake member in one direction and a spring for moving said brake member in the oppositedirection, substantially as described.

Signed by me at said Carthage this 14th day of December, 1901'.

JACO I) RED DING.

Witnesses:

JOSEPH Q. HUBBARD, PHILANDER WEAVER. 

